Thermoplastic insulation. May be run in plenums or may be used in the place of CMR, CMG, CM, CMX cables. 24 AWG, 4 pair cables made with soft annealed copper conductors. FEP insulation, PVC jacket. Pair 1 - white, blue, pair 2 - white, orange, pair 3 - white, green, pair 4 - white, brown. 22 pounds per 1,000 ft UL Listed. Meets 2011 National Electrical Code, NFPA 262 and RoHS Compliant.